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Geo IR 85-92GHz
Date/Time_(UTC) Source Sensor Vmax(kts) ARCHER Lat Lon Geo-ref Lat Lon 50% cert. rad. 95% cert. rad. Eye diam (deg) % cert. of eye
20190511 05:34:41 AMSR2 85-92GHz 30.2 -8.92 127.60 -8.92 127.60 0.50 1.42 2.00 0.8
20190511 05:34:41 AMSR2 37GHz 30.2 -9.97 127.19 -9.97 127.20 0.54 1.52 3.00 ***
20190511 05:30:00 Geo Vis 30.3 -9.29 126.74 -9.29 126.74 3.36 9.49 0.60 ***
20190511 05:30:00 Geo NearIR 30.3 *** *** *** *** *** *** 0.10 ***
20190511 05:30:00 Geo IR 30.3 *** *** *** *** *** *** 0.40 ***
20190511 02:30:00 Geo Vis 31.9 -9.89 127.88 -9.89 127.88 3.36 9.49 0.20 ***
20190511 02:30:00 Geo NearIR 31.9 *** *** *** *** *** *** 0.10 ***
20190511 02:30:00 Geo IR 31.9 -9.79 126.64 -9.79 126.64 3.36 9.49 0.10 10.5
20190511 01:03:00 Metop-B ASCAT 32.8 *** *** *** *** *** *** *** ***
20190510 23:30:00 Geo Vis 33.6 -9.48 127.52 -9.48 127.52 3.36 9.49 0.20 ***
20190510 23:30:00 Geo NearIR 33.6 -9.56 127.32 -9.56 127.32 0.25 0.71 0.70 ***
20190510 23:30:00 * Geo IR 33.6 -9.51 127.29 -9.51 127.29 0.24 0.69 0.70 34.7
20190510 21:42:41 SSMIS-17 85-92GHz 34.6 -9.40 127.48 -9.40 127.60 0.17 0.49 2.90 1.3
20190510 20:56:48 * SSMIS-18 85-92GHz 35.0 -9.35 127.51 -9.35 127.55 0.12 0.33 2.30 3.4
20190510 20:30:00 Geo NearIR 35.0 -9.57 127.50 -9.57 127.50 0.28 0.80 0.10 ***
20190510 20:30:00 * Geo IR 35.0 -9.45 127.50 -9.45 127.50 0.19 0.52 0.40 14.1
20190510 17:30:00 Geo NearIR 35.0 -9.93 128.29 -9.93 128.29 0.59 1.67 0.40 ***
20190510 17:30:00 Geo IR 35.0 -9.85 128.27 -9.85 128.27 1.19 3.38 0.40 -2.8
20190510 17:18:02 AMSR2 85-92GHz 35.0 -9.05 127.94 -9.05 127.91 0.46 1.30 0.70 4.6
20190510 17:18:02 AMSR2 37GHz 35.0 -9.45 127.79 -9.45 127.76 0.47 1.33 1.30 ***
20190510 14:30:00 Geo NearIR 35.0 -10.30 128.28 -10.30 128.28 3.36 9.49 0.90 ***
20190510 14:30:00 Geo IR 35.0 -10.23 127.44 -10.23 127.44 2.04 5.77 0.10 4.7
20190510 12:45:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20190510 11:30:00 Geo NearIR 35.0 -10.73 128.89 -10.73 128.89 0.65 1.84 0.60 ***
20190510 11:30:00 * Geo IR 35.0 -10.58 128.84 -10.58 128.84 0.40 1.12 0.10 48.9
20190510 10:34:40 * SSMIS-17 85-92GHz 35.0 -10.60 128.58 -10.60 128.57 0.34 0.96 0.70 1.3
20190510 08:30:00 Geo Vis 35.0 -10.38 128.66 -10.38 128.66 0.54 1.53 0.10 ***
20190510 08:30:00 Geo NearIR 35.0 -10.53 128.86 -10.53 128.86 0.39 1.11 0.90 ***
20190510 08:30:00 Geo IR 35.0 -10.43 128.79 -10.43 128.79 0.34 0.95 0.10 13.8
20190510 07:04:06 * SSMIS-16 85-92GHz 35.0 -10.30 128.85 -10.30 128.83 0.30 0.84 2.90 3.3
20190510 05:41:39 GMI 85-92GHz 35.5 -9.40 128.68 -9.41 128.69 0.43 1.21 1.20 1.7
20190510 05:41:39 GMI 37GHz 35.5 -9.90 128.88 -9.91 128.89 0.29 0.82 2.00 ***
20190510 05:30:00 Geo Vis 35.8 -10.31 128.67 -10.31 128.67 1.61 4.55 0.10 ***
20190510 05:30:00 Geo NearIR 35.8 -10.24 128.90 -10.24 128.90 0.63 1.78 0.30 ***
20190510 05:30:00 Geo IR 35.8 -10.54 128.90 -10.54 128.90 0.34 0.97 0.10 65.5
20190510 04:51:26 AMSR2 85-92GHz 36.9 -10.16 128.92 -10.11 128.87 0.20 0.55 2.80 9.0
20190510 04:51:26 AMSR2 37GHz 36.9 -9.91 128.82 -9.86 128.77 0.23 0.65 0.10 ***
20190510 02:30:00 * Geo Vis 40.8 -10.15 128.92 -10.15 128.92 0.12 0.34 0.10 ***
20190510 02:30:00 Geo NearIR 40.8 -10.27 128.92 -10.27 128.92 0.21 0.60 0.10 ***
20190510 02:30:00 Geo IR 40.8 -10.25 128.97 -10.25 128.97 0.20 0.57 0.10 11.8
20190510 00:12:00 Metop-A ASCAT 44.9 *** *** *** *** *** *** *** ***
20190509 23:30:00 Geo Vis 45.0 -10.26 128.82 -10.26 128.82 0.27 0.76 0.10 ***
20190509 23:30:00 Geo NearIR 45.0 -10.23 129.02 -10.23 129.02 0.23 0.64 0.20 ***
20190509 23:30:00 Geo IR 45.0 -10.11 129.05 -10.11 129.05 0.24 0.67 0.50 3.8
20190509 21:55:50 SSMIS-17 85-92GHz 45.0 -9.62 129.05 -9.54 129.05 0.27 0.77 0.30 55.4
20190509 21:09:30 * SSMIS-18 85-92GHz 45.0 -9.64 129.00 -9.60 129.00 0.23 0.66 0.30 64.3
20190509 20:30:00 Geo NearIR 45.0 -10.02 129.25 -10.02 129.25 0.25 0.71 0.50 ***
20190509 20:30:00 Geo IR 45.0 -10.00 129.23 -10.00 129.23 0.40 1.14 0.50 40.4
20190509 18:11:40 GMI 85-92GHz 45.0 -9.65 128.95 -9.61 128.94 0.24 0.67 0.10 36.4
20190509 18:11:40 GMI 37GHz 45.0 -9.40 129.10 -9.36 129.10 0.27 0.76 0.20 ***
20190509 16:35:04 * AMSR2 85-92GHz 43.8 -9.68 128.92 -9.75 128.94 0.18 0.50 2.00 27.8
20190509 16:35:04 AMSR2 37GHz 43.8 -9.63 128.87 -9.70 128.89 0.27 0.78 0.30 ***
20190509 14:30:00 Geo NearIR 42.1 *** *** *** *** *** *** 0.10 ***
20190509 14:30:00 Geo IR 42.1 -10.60 128.70 -10.60 128.70 3.36 9.49 0.10 3.1
20190509 13:06:00 Metop-A ASCAT 40.9 -9.30 129.07 -9.42 129.13 0.21 0.59 *** ***
20190509 12:42:00 * Metop-B ASCAT 40.0 -9.20 128.99 -9.11 128.98 0.16 0.46 *** ***
20190509 11:30:00 Geo NearIR 39.6 -10.12 128.85 -10.12 128.85 3.36 9.49 0.10 ***
20190509 11:30:00 Geo IR 39.6 -10.05 128.34 -10.05 128.34 0.29 0.82 0.30 7.5
20190509 08:30:00 Geo Vis 37.1 -9.52 128.39 -9.52 128.39 0.46 1.30 0.10 ***
20190509 08:30:00 Geo NearIR 37.1 -9.89 128.17 -9.89 128.17 0.66 1.86 0.80 ***
20190509 08:30:00 * Geo IR 37.1 -9.39 128.55 -9.39 128.55 0.14 0.39 0.30 48.7
20190509 05:30:00 Geo Vis 35.0 -9.71 128.26 -9.71 128.26 0.20 0.56 0.20 ***
20190509 05:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.40 ***
20190509 05:30:00 * Geo IR 35.0 -9.66 128.69 -9.66 128.69 0.14 0.40 0.30 14.0

Key:

Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 3-hr window, it is put in bold.

Source/sensor: Satellite source of the analyzed image.

Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

% cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

Links to related versions: Summary table, ARCHER Track table, ARCHER Track Image Archive, Intensity Estimation, ARCHER-ERC page

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